General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by:
Sponsored by: CARiD

AC took a crap

Thread Tools
 
Search this Thread
 
Old Nov 22, 2009 | 05:03 PM
  #1  
N20zuki's Avatar
Thread Starter
TECH Resident
 
Joined: Jun 2009
Posts: 856
Likes: 2
From: Elizabeth City NC
Default AC took a crap

And before I take it to the dealer I figured I try trouble shooting first... Now with my general knowledge of Hvac systems, I checked the low pressure switch by bypassing it. Makes no differance, The compressor still kicks on and I tried to top off the refridgerent but it wouldnt take any. Im a little lost on what the issue could be, The systems simple. If the compressor is on then the refridgerent is circulating, which should blow cold but this is not the case.
Reply
Old Nov 22, 2009 | 09:08 PM
  #2  
fleetmgr's Avatar
TECH Addict
 
Joined: Jun 2009
Posts: 2,012
Likes: 0
From: Tulsa, OK
Default

You may have a plugged orifice tube.
Reply
Old Nov 23, 2009 | 10:22 AM
  #3  
6.0 silverado's Avatar
On The Tree
iTrader: (2)
 
Joined: Sep 2009
Posts: 182
Likes: 3
Default

Originally Posted by fleetmgr
You may have a plugged orifice tube.
yeah, plugged with pieces of a disintegrated pump. haha. Sorry, I couldn't help myself.

If you really want to get into it, buy I set a gauges from harbor freight ($40) or there are plenty of shops (at least in my area) that will do an AC check for free.
Reply
Old Nov 23, 2009 | 11:21 AM
  #4  
slow's Avatar
TECH Senior Member
20 Year Member
iTrader: (7)
 
Joined: Dec 2001
Posts: 6,150
Likes: 7
From: Orlando
Default

There is no low pressure switch on a ls1 f-car system, so what connector did you jump?

There is a clutch on the compressor, and a pressure switch on the high side (3 wire sensor), that works as a low and a high pressure cutoff with the pcm providing the logic.

Ryan
Reply
Old Nov 23, 2009 | 04:02 PM
  #5  
N20zuki's Avatar
Thread Starter
TECH Resident
 
Joined: Jun 2009
Posts: 856
Likes: 2
From: Elizabeth City NC
Default

Originally Posted by slow
There is no low pressure switch on a ls1 f-car system, so what connector did you jump?

There is a clutch on the compressor, and a pressure switch on the high side (3 wire sensor), that works as a low and a high pressure cutoff with the pcm providing the logic.

Ryan
lol by unplugging it and seeing the compressor didnt turn on...

Just got home from the dealer and they told me they pulled out 1.2lbs of refridgerant so the level was good but the compressor is running but not making pressure. So they estimated me 1200$ but I declined as I can change the accumulator and Ac compressor for 185$ and then take it back for a evac and charge.
Reply
Old Nov 23, 2009 | 04:53 PM
  #6  
6.0 silverado's Avatar
On The Tree
iTrader: (2)
 
Joined: Sep 2009
Posts: 182
Likes: 3
Default

Originally Posted by N20zuki
lol by unplugging it and seeing the compressor didnt turn on...

Just got home from the dealer and they told me they pulled out 1.2lbs of refridgerant so the level was good but the compressor is running but not making pressure. So they estimated me 1200$ but I declined as I can change the accumulator and Ac compressor for 185$ and then take it back for a evac and charge.
$185?! That's pretty cheap. Remember to flush the system really well before you put any new parts on. Auto Zone sells a spray can used for flushing AC systems. Don't forget the oil either.

You're also better off buying a set of gauges and a pneumatic vacuum pump (if you have an air compressor). Evac and recharge prices are usually a rip-off.
Reply
Old Nov 23, 2009 | 06:30 PM
  #7  
N20zuki's Avatar
Thread Starter
TECH Resident
 
Joined: Jun 2009
Posts: 856
Likes: 2
From: Elizabeth City NC
Default

After doing more research 279$ for the compressor and accumulator... the 185$ was a no name brand piece, But this other one is the V7 factory one... Comes with the oil too.

I am going to have to look for the flush stuff, as I was going to jus take it to the dealer with the parts. Im at the point where I bought this car bc I was tired of workin on my cars continuesly but I guess I cant get away from it lol.
Reply




All times are GMT -5. The time now is 06:04 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE